Cells that line the liver. These cells remove waste such as bacteria from the blood.

The largest abdominal organ. The liver carries out many important functions, such as making important blood proteins and bile, changing food into energy, and cleaning alcohol and poisons from the blood.

The way cells change food into energy after food is digested and absorbed into the blood.

Drugs that draw fluid into the colon and soften stool, making it easier to pass. This class of drugs is useful for people with idiopathic constipation and includes lactulose and polyethylene glycol electrolyte solution. (Brand… 

The area around the anus.

A doctor who specializes in disorders of the anus and rectum.

The lower end of the large intestine leading to the anus.

The lower part of the colon that empties into the rectum.

Drugs that cause rhythmic muscle contractions in the intestines. (Brand names: Senokot, Correctol, Dulcolax.)

One of millions of minute structures of the intestinal mucosa that project into the intestinal lumen for the purpose of absorbing passing nutrients into the blood and lymph system. Villus enzymes digest the sugars lactose,…